n8n/packages/nodes-base/nodes/Postgres/Postgres.node.ts

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import type {
IExecuteFunctions,
ICredentialsDecrypted,
ICredentialTestFunctions,
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IDataObject,
INodeCredentialTestResult,
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INodeExecutionData,
INodeType,
:sparkles: Improve node error handling (#1309) * Add path mapping and response error interfaces * Add error handling and throwing functionality * Refactor error handling into a single function * Re-implement error handling in Hacker News node * Fix linting details * Re-implement error handling in Spotify node * Re-implement error handling in G Suite Admin node * :construction: create basic setup NodeError * :construction: add httpCodes * :construction: add path priolist * :construction: handle statusCode in error, adjust interfaces * :construction: fixing type issues w/Ivan * :construction: add error exploration * 👔 fix linter issues * :wrench: improve object check * :construction: remove path passing from NodeApiError * :construction: add multi error + refactor findProperty method * 👔 allow any * :wrench: handle multi error message callback * :zap: change return type of callback * :zap: add customCallback to MultiError * :construction: refactor to use INode * :hammer: handle arrays, continue search after first null property found * 🚫 refactor method access * :construction: setup NodeErrorView * :zap: change timestamp to Date.now * :books: Add documentation for methods and constants * :construction: change message setting * 🚚 move NodeErrors to workflow * :sparkles: add new ErrorView for Nodes * :art: improve error notification * :art: refactor interfaces * :zap: add WorkflowOperationError, refactor error throwing * 👕 fix linter issues * :art: rename param * :bug: fix handling normal errors * :zap: add usage of NodeApiError * :art: fix throw new error instead of constructor * :art: remove unnecessary code/comments * :art: adjusted spacing + updated status messages * :art: fix tab indentation * ✨ Replace current errors with custom errors (#1576) * :zap: Introduce NodeApiError in catch blocks * :zap: Introduce NodeOperationError in nodes * :zap: Add missing errors and remove incompatible * :zap: Fix NodeOperationError in incompatible nodes * :wrench: Adjust error handling in missed nodes PayPal, FileMaker, Reddit, Taiga and Facebook Graph API nodes * :hammer: Adjust Strava Trigger node error handling * :hammer: Adjust AWS nodes error handling * :hammer: Remove duplicate instantiation of NodeApiError * :bug: fix strava trigger node error handling * Add XML parsing to NodeApiError constructor (#1633) * :bug: Remove type annotation from catch variable * :sparkles: Add XML parsing to NodeApiError * :zap: Simplify error handling in Rekognition node * :zap: Pass in XML flag in generic functions * :fire: Remove try/catch wrappers at call sites * :hammer: Refactor setting description from XML * :hammer: Refactor let to const in resource loaders * :zap: Find property in parsed XML * :zap: Change let to const * :fire: Remove unneeded try/catch block * :shirt: Fix linting issues * :bug: Fix errors from merge conflict resolution * :zap: Add custom errors to latest contributions * :shirt: Fix linting issues * :zap: Refactor MongoDB helpers for custom errors * :bug: Correct custom error type * :zap: Apply feedback to A nodes * :zap: Apply feedback to missed A node * :zap: Apply feedback to B-D nodes * :zap: Apply feedback to E-F nodes * :zap: Apply feedback to G nodes * :zap: Apply feedback to H-L nodes * :zap: Apply feedback to M nodes * :zap: Apply feedback to P nodes * :zap: Apply feedback to R nodes * :zap: Apply feedback to S nodes * :zap: Apply feedback to T nodes * :zap: Apply feedback to V-Z nodes * :zap: Add HTTP code to iterable node error * :hammer: Standardize e as error * :hammer: Standardize err as error * :zap: Fix error handling for non-standard nodes Co-authored-by: Ben Hesseldieck <b.hesseldieck@gmail.com> Co-authored-by: Ben Hesseldieck <b.hesseldieck@gmail.com> Co-authored-by: Ben Hesseldieck <1849459+BHesseldieck@users.noreply.github.com>
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INodeTypeDescription,
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} from 'n8n-workflow';
import { NodeOperationError } from 'n8n-workflow';
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import pgPromise from 'pg-promise';
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import { pgInsertV2, pgQueryV2, pgUpdate, wrapData } from './Postgres.node.functions';
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export class Postgres implements INodeType {
description: INodeTypeDescription = {
displayName: 'Postgres',
name: 'postgres',
icon: 'file:postgres.svg',
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group: ['input'],
version: 1,
description: 'Get, add and update data in Postgres',
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defaults: {
name: 'Postgres',
},
inputs: ['main'],
outputs: ['main'],
credentials: [
{
name: 'postgres',
required: true,
testedBy: 'postgresConnectionTest',
},
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],
properties: [
{
displayName: 'Operation',
name: 'operation',
type: 'options',
refactor: Apply more nodelinting rules (#3324) * :pencil2: Alphabetize lint rules * :fire: Remove duplicates * :zap: Update `lintfix` script * :shirt: Apply `node-param-operation-without-no-data-expression` (#3329) * :shirt: Apply `node-param-operation-without-no-data-expression` * :shirt: Add exceptions * :shirt: Apply `node-param-description-weak` (#3328) Co-authored-by: Iván Ovejero <ivov.src@gmail.com> * :shirt: Apply `node-param-option-value-duplicate` (#3331) * :shirt: Apply `node-param-description-miscased-json` (#3337) * :shirt: Apply `node-param-display-name-excess-inner-whitespace` (#3335) Co-authored-by: Iván Ovejero <ivov.src@gmail.com> * :shirt: Apply `node-param-type-options-missing-from-limit` (#3336) * Rule workig as intended * :pencil2: Uncomment rules Co-authored-by: Iván Ovejero <ivov.src@gmail.com> * :shirt: Apply `node-param-option-name-duplicate` (#3338) Co-authored-by: Iván Ovejero <ivov.src@gmail.com> * :shirt: Apply `node-param-description-wrong-for-simplify` (#3334) * :zap: fix * :zap: exceptions * :zap: changed rule ignoring from file to line * :shirt: Apply `node-param-resource-without-no-data-expression` (#3339) * :shirt: Apply `node-param-display-name-untrimmed` (#3341) * :shirt: Apply `node-param-display-name-miscased-id` (#3340) Co-authored-by: Iván Ovejero <ivov.src@gmail.com> * :shirt: Apply `node-param-resource-with-plural-option` (#3342) * :shirt: Apply `node-param-description-wrong-for-upsert` (#3333) * :zap: fix * :zap: replaced record with contact in description * :zap: fix Co-authored-by: Iván Ovejero <ivov.src@gmail.com> * :shirt: Apply `node-param-option-description-identical-to-name` (#3343) * :shirt: Apply `node-param-option-name-containing-star` (#3347) * :shirt: Apply `node-param-display-name-wrong-for-update-fields` (#3348) * :shirt: Apply `node-param-option-name-wrong-for-get-all` (#3345) * :zap: fix * :zap: exceptions * :shirt: Apply node-param-display-name-wrong-for-simplify (#3344) * Rule working as intended * Uncomented other rules * :shirt: Undo and add exceptions Co-authored-by: Iván Ovejero <ivov.src@gmail.com> * :zap: Alphabetize lint rules * :zap: Restore `lintfix` script Co-authored-by: Michael Kret <88898367+michael-radency@users.noreply.github.com> Co-authored-by: agobrech <45268029+agobrech@users.noreply.github.com>
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noDataExpression: true,
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options: [
{
name: 'Execute Query',
value: 'executeQuery',
description: 'Execute an SQL query',
action: 'Execute a SQL query',
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},
{
name: 'Insert',
value: 'insert',
description: 'Insert rows in database',
action: 'Insert rows in database',
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},
{
name: 'Update',
value: 'update',
description: 'Update rows in database',
action: 'Update rows in database',
},
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],
default: 'insert',
},
// ----------------------------------
// executeQuery
// ----------------------------------
{
displayName: 'Query',
name: 'query',
type: 'string',
displayOptions: {
show: {
operation: ['executeQuery'],
},
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},
default: '',
placeholder: 'SELECT id, name FROM product WHERE quantity > $1 AND price <= $2',
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required: true,
description:
'The SQL query to execute. You can use n8n expressions or $1 and $2 in conjunction with query parameters.',
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},
// ----------------------------------
// insert
// ----------------------------------
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{
displayName: 'Schema',
name: 'schema',
type: 'string',
displayOptions: {
show: {
operation: ['insert'],
},
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},
default: 'public',
required: true,
description: 'Name of the schema the table belongs to',
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},
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{
displayName: 'Table',
name: 'table',
type: 'string',
displayOptions: {
show: {
operation: ['insert'],
},
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},
default: '',
required: true,
description: 'Name of the table in which to insert data to',
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},
{
displayName: 'Columns',
name: 'columns',
type: 'string',
displayOptions: {
show: {
operation: ['insert'],
},
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},
default: '',
refactor: Apply more `eslint-plugin-n8n-nodes-base` autofixable rules (#3432) * :zap: Update `lintfix` script * :shirt: Remove unneeded lint exceptions * :shirt: Run baseline `lintfix` * :shirt: Apply `node-param-description-miscased-url` (#3441) * :shirt: Apply `rule node-param-placeholder-miscased-id` (#3443) Co-authored-by: Iván Ovejero <ivov.src@gmail.com> * :shirt: Apply `node-param-option-name-wrong-for-upsert` (#3446) * :shirt: Apply `node-param-min-value-wrong-for-limit` (#3442) Co-authored-by: Iván Ovejero <ivov.src@gmail.com> * Apply `node-param-display-name-wrong-for-dynamic-options` (#3454) * :hammer: fix * :zap: Fix `Assigned To` fields Co-authored-by: Michael Kret <michael.k@radency.com> * :shirt: Apply `rule node-param-default-wrong-for-number` (#3453) * :shirt: Apply `node-param-default-wrong-for-string` (#3452) Co-authored-by: Iván Ovejero <ivov.src@gmail.com> * Apply `node-param-display-name-miscased` (#3449) * :hammer: fix * :hammer: exceptions * :zap: review fixes * :shirt: Apply `node-param-description-lowercase-first-char` (#3451) * :zap: fix * :zap: review fixes * :zap: fix Co-authored-by: Iván Ovejero <ivov.src@gmail.com> * :shirt: Apply `node-param-description-wrong-for-dynamic-options` (#3456) * Rule working as intended * Add rule * :fire: Remove repetitions * :shirt: Add exceptions Co-authored-by: Iván Ovejero <ivov.src@gmail.com> * :shirt: Small fix for `node-param-description-wrong-for-dynamic-options` * :shirt: Apply `node-param-default-wrong-for-fixed-collection` (#3460) * :shirt: Apply `node-param-description-line-break-html-tag` (#3462) * :shirt: Run baseline `lintfix` * :shirt: Apply `node-param-options-type-unsorted-items` (#3459) * :zap: fix * :hammer: exceptions * Add exception for Salesmate and Zoom Co-authored-by: Michael Kret <michael.k@radency.com> Co-authored-by: Iván Ovejero <ivov.src@gmail.com> * :zap: Restore `lintfix` command Co-authored-by: Omar Ajoue <krynble@gmail.com> Co-authored-by: Michael Kret <88898367+michael-radency@users.noreply.github.com> Co-authored-by: agobrech <45268029+agobrech@users.noreply.github.com> Co-authored-by: Michael Kret <michael.k@radency.com> Co-authored-by: brianinoa <54530642+brianinoa@users.noreply.github.com>
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// eslint-disable-next-line n8n-nodes-base/node-param-placeholder-miscased-id
placeholder: 'id:int,name:text,description',
// eslint-disable-next-line n8n-nodes-base/node-param-description-miscased-id
description:
'Comma-separated list of the properties which should used as columns for the new rows. You can use type casting with colons (:) like id:int.',
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},
// ----------------------------------
// update
// ----------------------------------
{
displayName: 'Schema',
name: 'schema',
type: 'string',
displayOptions: {
show: {
operation: ['update'],
},
},
default: 'public',
description: 'Name of the schema the table belongs to',
},
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{
displayName: 'Table',
name: 'table',
type: 'string',
displayOptions: {
show: {
operation: ['update'],
},
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},
default: '',
required: true,
description: 'Name of the table in which to update data in',
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},
{
displayName: 'Update Key',
name: 'updateKey',
type: 'string',
displayOptions: {
show: {
operation: ['update'],
},
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},
default: 'id',
required: true,
// eslint-disable-next-line n8n-nodes-base/node-param-description-miscased-id
description:
'Comma-separated list of the properties which decides which rows in the database should be updated. Normally that would be "id".',
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},
{
displayName: 'Columns',
name: 'columns',
type: 'string',
displayOptions: {
show: {
operation: ['update'],
},
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},
default: '',
placeholder: 'name:text,description',
// eslint-disable-next-line n8n-nodes-base/node-param-description-miscased-id
description:
'Comma-separated list of the properties which should used as columns for rows to update. You can use type casting with colons (:) like id:int.',
},
// ----------------------------------
// insert,update
// ----------------------------------
{
displayName: 'Return Fields',
name: 'returnFields',
type: 'string',
requiresDataPath: 'multiple',
displayOptions: {
show: {
operation: ['insert', 'update'],
},
},
default: '*',
refactor: Apply `eslint-plugin-n8n-nodes-base` autofixable rules (#3174) * :zap: Initial setup * :shirt: Update `.eslintignore` * :shirt: Autofix node-param-default-missing (#3173) * :fire: Remove duplicate key * :shirt: Add exceptions * :package: Update package-lock.json * :shirt: Apply `node-class-description-inputs-wrong-trigger-node` (#3176) * :shirt: Apply `node-class-description-inputs-wrong-regular-node` (#3177) * :shirt: Apply `node-class-description-outputs-wrong` (#3178) * :shirt: Apply `node-execute-block-double-assertion-for-items` (#3179) * :shirt: Apply `node-param-default-wrong-for-collection` (#3180) * :shirt: Apply node-param-default-wrong-for-boolean (#3181) * Autofixed default missing * Autofixed booleans, worked well * :zap: Fix params * :rewind: Undo exempted autofixes * :package: Update package-lock.json * :shirt: Apply node-class-description-missing-subtitle (#3182) * :zap: Fix missing comma * :shirt: Apply `node-param-default-wrong-for-fixed-collection` (#3184) * :shirt: Add exception for `node-class-description-missing-subtitle` * :shirt: Apply `node-param-default-wrong-for-multi-options` (#3185) * :shirt: Apply `node-param-collection-type-unsorted-items` (#3186) * Missing coma * :shirt: Apply `node-param-default-wrong-for-simplify` (#3187) * :shirt: Apply `node-param-description-comma-separated-hyphen` (#3190) * :shirt: Apply `node-param-description-empty-string` (#3189) * :shirt: Apply `node-param-description-excess-inner-whitespace` (#3191) * Rule looks good * Add whitespace rule in eslint config * :zao: fix * :shirt: Apply `node-param-description-identical-to-display-name` (#3193) * :shirt: Apply `node-param-description-missing-for-ignore-ssl-issues` (#3195) * :rewind: Revert ":zao: fix" This reverts commit ef8a76f3dfedffd1bdccf3178af8a8d90cf5a55c. * :shirt: Apply `node-param-description-missing-for-simplify` (#3196) * :shirt: Apply `node-param-description-missing-final-period` (#3194) * Rule working as intended * Add rule to eslint * :shirt: Apply node-param-description-missing-for-return-all (#3197) * :zap: Restore `lintfix` command Co-authored-by: agobrech <45268029+agobrech@users.noreply.github.com> Co-authored-by: Omar Ajoue <krynble@gmail.com> Co-authored-by: agobrech <ael.gobrecht@gmail.com> Co-authored-by: Michael Kret <michael.k@radency.com>
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description: 'Comma-separated list of the fields that the operation will return',
},
// ----------------------------------
// Additional fields
// ----------------------------------
{
displayName: 'Additional Fields',
name: 'additionalFields',
type: 'collection',
placeholder: 'Add Field',
default: {},
options: [
{
displayName: 'Mode',
name: 'mode',
type: 'options',
options: [
{
name: 'Independently',
value: 'independently',
description: 'Execute each query independently',
},
{
refactor: Apply more `eslint-plugin-n8n-nodes-base` autofixable rules (#3432) * :zap: Update `lintfix` script * :shirt: Remove unneeded lint exceptions * :shirt: Run baseline `lintfix` * :shirt: Apply `node-param-description-miscased-url` (#3441) * :shirt: Apply `rule node-param-placeholder-miscased-id` (#3443) Co-authored-by: Iván Ovejero <ivov.src@gmail.com> * :shirt: Apply `node-param-option-name-wrong-for-upsert` (#3446) * :shirt: Apply `node-param-min-value-wrong-for-limit` (#3442) Co-authored-by: Iván Ovejero <ivov.src@gmail.com> * Apply `node-param-display-name-wrong-for-dynamic-options` (#3454) * :hammer: fix * :zap: Fix `Assigned To` fields Co-authored-by: Michael Kret <michael.k@radency.com> * :shirt: Apply `rule node-param-default-wrong-for-number` (#3453) * :shirt: Apply `node-param-default-wrong-for-string` (#3452) Co-authored-by: Iván Ovejero <ivov.src@gmail.com> * Apply `node-param-display-name-miscased` (#3449) * :hammer: fix * :hammer: exceptions * :zap: review fixes * :shirt: Apply `node-param-description-lowercase-first-char` (#3451) * :zap: fix * :zap: review fixes * :zap: fix Co-authored-by: Iván Ovejero <ivov.src@gmail.com> * :shirt: Apply `node-param-description-wrong-for-dynamic-options` (#3456) * Rule working as intended * Add rule * :fire: Remove repetitions * :shirt: Add exceptions Co-authored-by: Iván Ovejero <ivov.src@gmail.com> * :shirt: Small fix for `node-param-description-wrong-for-dynamic-options` * :shirt: Apply `node-param-default-wrong-for-fixed-collection` (#3460) * :shirt: Apply `node-param-description-line-break-html-tag` (#3462) * :shirt: Run baseline `lintfix` * :shirt: Apply `node-param-options-type-unsorted-items` (#3459) * :zap: fix * :hammer: exceptions * Add exception for Salesmate and Zoom Co-authored-by: Michael Kret <michael.k@radency.com> Co-authored-by: Iván Ovejero <ivov.src@gmail.com> * :zap: Restore `lintfix` command Co-authored-by: Omar Ajoue <krynble@gmail.com> Co-authored-by: Michael Kret <88898367+michael-radency@users.noreply.github.com> Co-authored-by: agobrech <45268029+agobrech@users.noreply.github.com> Co-authored-by: Michael Kret <michael.k@radency.com> Co-authored-by: brianinoa <54530642+brianinoa@users.noreply.github.com>
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name: 'Multiple Queries',
value: 'multiple',
description: '<b>Default</b>. Sends multiple queries at once to database.',
},
{
name: 'Transaction',
value: 'transaction',
description: 'Executes all queries in a single transaction',
},
],
default: 'multiple',
description:
'The way queries should be sent to database. Can be used in conjunction with <b>Continue on Fail</b>. See <a href="https://docs.n8n.io/integrations/builtin/app-nodes/n8n-nodes-base.postgres/">the docs</a> for more examples',
},
{
displayName: 'Output Large-Format Numbers As',
name: 'largeNumbersOutput',
type: 'options',
options: [
{
name: 'Numbers',
value: 'numbers',
},
{
name: 'Text',
value: 'text',
description:
'Use this if you expect numbers longer than 16 digits (otherwise numbers may be incorrect)',
},
],
hint: 'Applies to NUMERIC and BIGINT columns only',
default: 'text',
},
{
displayName: 'Query Parameters',
name: 'queryParams',
type: 'string',
displayOptions: {
show: {
'/operation': ['executeQuery'],
},
},
default: '',
placeholder: 'quantity,price',
description:
'Comma-separated list of properties which should be used as query parameters',
},
],
},
],
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};
methods = {
credentialTest: {
async postgresConnectionTest(
this: ICredentialTestFunctions,
credential: ICredentialsDecrypted,
): Promise<INodeCredentialTestResult> {
const credentials = credential.data as IDataObject;
try {
const pgp = pgPromise();
const config: IDataObject = {
host: credentials.host as string,
port: credentials.port as number,
database: credentials.database as string,
user: credentials.user as string,
password: credentials.password as string,
};
if (credentials.allowUnauthorizedCerts === true) {
config.ssl = {
rejectUnauthorized: false,
};
} else {
config.ssl = !['disable', undefined].includes(credentials.ssl as string | undefined);
config.sslmode = (credentials.ssl as string) || 'disable';
}
const db = pgp(config);
await db.connect();
pgp.end();
} catch (error) {
return {
status: 'Error',
message: error.message,
};
}
return {
status: 'OK',
message: 'Connection successful!',
};
},
},
};
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async execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
const credentials = await this.getCredentials('postgres');
const largeNumbersOutput = this.getNodeParameter(
'additionalFields.largeNumbersOutput',
0,
'',
) as string;
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const pgp = pgPromise();
if (largeNumbersOutput === 'numbers') {
pgp.pg.types.setTypeParser(20, (value: string) => {
return parseInt(value, 10);
});
pgp.pg.types.setTypeParser(1700, (value: string) => {
return parseFloat(value);
});
}
const config: IDataObject = {
host: credentials.host as string,
port: credentials.port as number,
database: credentials.database as string,
user: credentials.user as string,
password: credentials.password as string,
};
if (credentials.allowUnauthorizedCerts === true) {
config.ssl = {
rejectUnauthorized: false,
};
} else {
config.ssl = !['disable', undefined].includes(credentials.ssl as string | undefined);
config.sslmode = (credentials.ssl as string) || 'disable';
}
const db = pgp(config);
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let returnItems: INodeExecutionData[] = [];
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const items = this.getInputData();
const operation = this.getNodeParameter('operation', 0);
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if (operation === 'executeQuery') {
// ----------------------------------
// executeQuery
// ----------------------------------
const queryResult = await pgQueryV2.call(this, pgp, db, items, this.continueOnFail());
returnItems = queryResult as INodeExecutionData[];
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} else if (operation === 'insert') {
// ----------------------------------
// insert
// ----------------------------------
const insertData = await pgInsertV2.call(this, pgp, db, items, this.continueOnFail());
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// returnItems = this.helpers.returnJsonArray(insertData);
returnItems = insertData as INodeExecutionData[];
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} else if (operation === 'update') {
// ----------------------------------
// update
// ----------------------------------
const updateItems = await pgUpdate(
this.getNodeParameter,
pgp,
db,
items,
this.continueOnFail(),
);
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returnItems = wrapData(updateItems);
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} else {
pgp.end();
throw new NodeOperationError(
this.getNode(),
`The operation "${operation}" is not supported!`,
);
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}
// Close the connection
pgp.end();
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return this.prepareOutputData(returnItems);
}
}