DS2 create post call rest out

[zinabenammar]

Hello, 

I'm facing a problem while trying to create a code DS2  to create  and execute a post this is my code :

proc ds2;

data test / overwrite=yes;

/*dcl varchar(65000) response;*/

method init();

dcl package tap_restcallout scbQuery();

dcl integer rc sc;


rc=scbQuery.createPost( 'https://hooks.slack.com/services/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');



sc=scbQuery.executePost(payload={"text": "tttttt"});



put 'RC=' rc;

put 'SC= ' sc;



end;

enddata;

run;

quit;

Please find in attachement the code SAS DS2 for the package tap_restcallout

Log: 

OPTIONS NONOTES NOSTIMER NOSOURCE NOSYNTAXCHECK;

72

73 proc ds2;

74

75 data test / overwrite=yes;

76

77 /*dcl varchar(65000) response;*/

78

79 method init();

80

81 dcl package tap_restcallout scbQuery();

82

83 dcl integer rc sc;

84 rc=scbQuery.createPost( 'https://hooks.slack.com/services/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');

85 sc=scbQuery.executePost(payload={"text": "tttttt"});

86 put 'RC=' rc;

87 put 'SC= ' sc;

88

89

90

91 end;

92

93 enddata;

94

95 run;

ERROR: Compilation error.

ERROR: Line 84: No method declaration for method createpost matches the given argument list.

ERROR: Line 85: No method declaration for method executepost matches the given argument list.

NOTE: PROC DS2 has set option NOEXEC and will continue to prepare statements.

96

97 quit;

[SASJedi · Accepted solution]

Your package contains an overloaded definition for the createPost method. One of the methods requires 5 parameters, the other 7: 

method createPost(nvarchar(16384) url, int timeout, nvarchar(256) userid, nvarchar(256) password, in_out int rc);
method createPost(nvarchar(16384) url, nvarchar(16384) contentType, nvarchar(16384) accept, int timeout, nvarchar(256) userid, nvarchar(256) password, in_out int rc);

 When you call the method in your code, DS2 looks for a method definition that has the same number of parameters. Your method call looks like this:

scbQuery.createPost( 'https://hooks.slack.com/services/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');

Because your method call only provides one  parameter value, there is no method definition in the package that matches that pattern, and DS2 throws the error:

ERROR: Line 84: No method declaration for method createpost matches the given argument list.

Your call to the executePost method has the same problem, resulting in the error:

ERROR: Line 85: No method declaration for method executepost matches the given argument list.

When you call a method in a DS2 data program, you must provide values for all parameters in order to execute the method without error.

[ballardw]

Both of the CreatePost methods in the code show 4 or more arguments. Your call in the code

rc=scbQuery.createPost( 'https://hooks.slack.com/services/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');

uses only one.

I don't do DS2 but that in a generic "number of parameters should match the parameters in the method call" way looks suspicious. Maybe you want another that only uses the URL??