API to make flows in n8n

jan · November 4, 2020, 5:15pm

We do not have an official API to do that. You can however use the internal one the editor-UI uses:

n8n-io/n8n/blob/master/packages/cli/src/Server.ts#L458-L478

      
        
            					return ResponseHelper.basicAuthAuthorizationError(
            						res,
            						realm,
            						'Authorization data is wrong!',
            					);
            				},
            			);
            		}
            
            
		// Check for and validate JWT if configured
            		const jwtAuthActive = config.get('security.jwtAuth.active') as boolean;
            		if (jwtAuthActive) {
            			const jwtAuthHeader = (await GenericHelpers.getConfigValue(
            				'security.jwtAuth.jwtHeader',
            			)) as string;
            			if (jwtAuthHeader === '') {
            				throw new Error('JWT auth is activated but no request header was defined. Please set one!');
            			}
            			const jwksUri = (await GenericHelpers.getConfigValue('security.jwtAuth.jwksUri')) as string;
            			if (jwksUri === '') {
            				throw new Error('JWT auth is activated but no JWK Set URI was defined. Please set one!');

Locally that would be a POST request to http://locahost:5678/rest/workflows
It then returns the saved workflow with its ID.

You can simply look in the browser what requests gets made and how they look like when a workflow gets created.

But again, it is not an official API. Meaning it can change and so break for you any time.